An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization

Solving multiobjective optimization problems means finding the best balance among multiple conflicting objectives. This needs preference information from a decision maker who is a domain expert. In interactive methods, the decision maker takes part in an iterative process to learn about the interdep...

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Main Authors: Dmitry Podkopaev, Kaisa Miettinen, Vesa Ojalehto
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9590548/
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author Dmitry Podkopaev
Kaisa Miettinen
Vesa Ojalehto
author_facet Dmitry Podkopaev
Kaisa Miettinen
Vesa Ojalehto
author_sort Dmitry Podkopaev
collection DOAJ
description Solving multiobjective optimization problems means finding the best balance among multiple conflicting objectives. This needs preference information from a decision maker who is a domain expert. In interactive methods, the decision maker takes part in an iterative process to learn about the interdependencies and can adjust the preferences. We address the need to compare different interactive multiobjective optimization methods, which is essential when selecting the most suited method for solving a particular problem. We concentrate on a class of interactive methods where a decision maker expresses preference information as reference points, i.e., desirable objective function values. Comparison of interactive methods with human decision makers is not a straightforward process due to cost and reliability issues. The lack of suitable behavioral models hampers creating artificial decision makers for automatic experiments. Few approaches to automating testing have been proposed in the literature; however, none are widely used. As a result, empirical performance studies are scarce for this class of methods despite its popularity among researchers and practitioners. We have developed a new approach to replace a decision maker to automatically compare interactive methods based on reference points or similar preference information. Keeping in mind the lack of suitable human behavioral models, we concentrate on evaluating general performance characteristics. Such an evaluation can partly address the absence of any tests and is appropriate for screening methods before more rigorous testing. We have implemented our approach as a ready-to-use Python module and illustrated it with computational examples.
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spelling doaj.art-ae9a657db71d4dc18f9c2f616b67f2b32022-12-22T03:12:50ZengIEEEIEEE Access2169-35362021-01-01915003715004810.1109/ACCESS.2021.31234329590548An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective OptimizationDmitry Podkopaev0https://orcid.org/0000-0001-9627-9808Kaisa Miettinen1https://orcid.org/0000-0003-1013-4689Vesa Ojalehto2https://orcid.org/0000-0002-5990-7518Systems Research Institute, Polish Academy of Sciences, Warsaw, PolandUniversity of Jyvaskyla, Faculty of Information Technology, Jyvaskyla, FinlandUniversity of Jyvaskyla, Faculty of Information Technology, Jyvaskyla, FinlandSolving multiobjective optimization problems means finding the best balance among multiple conflicting objectives. This needs preference information from a decision maker who is a domain expert. In interactive methods, the decision maker takes part in an iterative process to learn about the interdependencies and can adjust the preferences. We address the need to compare different interactive multiobjective optimization methods, which is essential when selecting the most suited method for solving a particular problem. We concentrate on a class of interactive methods where a decision maker expresses preference information as reference points, i.e., desirable objective function values. Comparison of interactive methods with human decision makers is not a straightforward process due to cost and reliability issues. The lack of suitable behavioral models hampers creating artificial decision makers for automatic experiments. Few approaches to automating testing have been proposed in the literature; however, none are widely used. As a result, empirical performance studies are scarce for this class of methods despite its popularity among researchers and practitioners. We have developed a new approach to replace a decision maker to automatically compare interactive methods based on reference points or similar preference information. Keeping in mind the lack of suitable human behavioral models, we concentrate on evaluating general performance characteristics. Such an evaluation can partly address the absence of any tests and is appropriate for screening methods before more rigorous testing. We have implemented our approach as a ready-to-use Python module and illustrated it with computational examples.https://ieeexplore.ieee.org/document/9590548/Decision makinginteractive systemsmultiobjective optimizationoptimizationoptimization methodstesting
spellingShingle Dmitry Podkopaev
Kaisa Miettinen
Vesa Ojalehto
An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
IEEE Access
Decision making
interactive systems
multiobjective optimization
optimization
optimization methods
testing
title An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
title_full An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
title_fullStr An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
title_full_unstemmed An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
title_short An Approach to the Automatic Comparison of Reference Point-Based Interactive Methods for Multiobjective Optimization
title_sort approach to the automatic comparison of reference point based interactive methods for multiobjective optimization
topic Decision making
interactive systems
multiobjective optimization
optimization
optimization methods
testing
url https://ieeexplore.ieee.org/document/9590548/
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